Sole for boots and shoes.



i.. D. STEWARD SOLE FOR BOOTS AND SHOES. APPLICATION lFILED JUNE 6.1911.

Patented July 16, 1918.

j i g /VVENTOR j I W i I Harney:

W/TNESSES .ws Name-J r-crsns cn mmm-umu wAsmNsn-m. n. c.

LOUISE DARBY STEIVARD, OF BOISE, IDAHO.

SOLE FOR BOOTS AND SHOES.

Specification of Letters Patent.

Application filed J une 6, 1917. Serial No. 173,172.

To all 'whom t may concern:

Be it known that I, LoUIsn D. STEwAnD, a citizen of the United States, and a resident of Boise, in the county of Ada and State of Idaho, have invented certain new and useful Improvements in Soles for Boots and Slices; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

rIhis invention relates to improvements in boots and shoes and more particularly to the sole portions thereof,one object of the invention being to enhance the strength and elasticity or resilience of the sole of a boot or shoe, so as to insure an even pressure on the sole and render the same more comfortable to the wearer.

A further object is to increase the even wearing quality of the sole and cause the shoe to retain its proper shape.`

lVith theseI and other objects in view, the invention consists in certain novel features of construction and combinations of parts as l hereinafter set forth and pointed out in the claims.

In the accompanying is a face view showing resilient device relatively to the inner and outer soles of a shoe, the inner sole being broken away; Fig. 52 is a transverse sectional view of a shoe sole on the line a-J) of Fig. 1, and Fig. 3 is a view of slight modification.

1 represents the outer or wearing sole of a boot or shoe and Q, the inner sole. Between these two soles, a hard resilient member 3, having any desired cross-section, is located. The member 3 may be made of resilient wire and its major portion has the form of a spiral spring il. An extension of this spring passes through the instep portion of the boot or shoe, as indicated at 5, then through the heel portion as indicated at 6, and then back through the instep portion as shown at 7,- the outer end of the wire terminating adj acent to the rear end of the spiral fl.

If desired, that portion of the resilient wire in the heel port-ion of the shoe may be coiled as shown at S, Fig. 3.

The spiral spring 4 lends resilience to the sole and holds the shoe in proper shape,- that is to say, it prevents excessive bending of the shoe at or near the line 'cz-b. It insures an even bend the whole length of the drawings, Figure 1 the position of the sole, thus preventing excessive wearing out or breaking of either the sole or the upper at or near the line ab. It will be noted that the coil is so formed as to afford the greatest strength at the center of the sole where the greatest force is applied, and that less resistance is offered at the toe where force is needed. Thus very even wearing qualities are insured for the entire sole.

By extending the wire from the coil to the heel portion, the instep will be strengthened and enhance the wearing qualities of the heeL-especially in the case of rubber boots or shoes.

In the construction of the shoe, the inner sole may be made of a single piece cut or stamped. to conform to the shape of the outer sole and theI outer sole may be cut with a suitably shaped groove to receive the spring, the obj ect attained being the placing of the spring so as not to form ridges in the inner sole of the boot or shoe. If desired, the inner sole instead of 4the outer sole might be grooved or recessed to receive the spring wire.

In the event that the leather or other material wears through, the spring will furnish a hard wearing material which will prolong the life of the shoe.

In case rubber or other pliable material is used in the shoe, the spring can be molded or vulcanized into the solo and heel and become an integral part of the heel.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a. boot or shoe sole, a spring wire bent to form a flat spiral and embodied in said sole.

2. In a boot or shoe sole, a spring wire bent to form a flat spiral and embodied therein and having an extension embodied in the instep and heel portions.

3. In a boot or shoe sole, a Spring wire bent to forni a flat elongated spiral and embodied in said sole and having an extension forming reinforcement for the instep and heel portions.

t. The combination with an inner and an outer sole, of a spring wire bent to form a iat spiral disposed between said soles and embodied in one of them.

5. A boot or shoe sole comprising an oute sole having a recessed inner face and an inner sole, and a spring wire bent to form a rat-enterramy is, '1918.y

Het spiral located in the recess of seid outer resistance to bending'- strain be offered at the 10 solo and under the inner sole. toe portion of the sole.

6. The combination with e boot or shoe In testimony whereof7 I have signed this sole, of a. spring Wire bent to form :i flat specifica-tion in the presence of two Sub- 5 elongated spiral and embodied in said sole, scribing Witnesses.

said fiat spiral being so disposed that the LOUISE .DARBY STEWARD. maximum resistance to bending of the sole I/Vitnesses:

will come at that portion Which is subjected DAVID LAWRENCE YOUNG,

to the greatest bending strain and e lesser Mrs. ZALLAII. I-IoN.

Copies .of lthis patent may vbe obtained for ve cents each, by addressing the VComzmissioner of Patents,

Washington, D. C. 

